Machine for sizing papek



UNITED srajrns Parana onirica.

LORENZO D. BROWN, OF LEE, MASSACHUSETTS.

MACHINE FOR SIZING PAPER.

Specification of Letters Patent No. 2,479, dated March 4, 1842; Antedated September 4, 1,841.

To all whom t may concern:

Be it known that T, LORENZO D. BROWN, of Lee, in the county ofBerkshire and State of Massachusetts, have `invented a new and useful Improvement in the Manufacture of Paper, called a Vat Sizing Machineg and I do hereby declare that the following is a full and exact description of the construction and opera-tion of :the said machine, the annexed drawing being a part of said description and this specication and showing a section of the machine.

rFhis sizing machine consistsof two parallel timbers framed together by two girths, or cross pieces of timber, standing on four post-s, designated in the drawing by the letters P, P, in which frame, is placed a vat, as shown in the drawing, marked o, o, ZJ. This vat should be about four feet in length, about ten inches deep, and should be wide enough to correspond with the width of the making cylinder in the vat of the making machine.` Four or live inches is considered large enough for the frame timber, and the frame will be found most convenient at the height of about two feet from the foot of the post to the top of the parallel timber, or plate; and should be large enough, each i way, to receive the vat.

A stirrup is placed on each end of the plates, or parallel timbers of the frame, about eighteen inches from the back end of the vat, and opposite each other. These stirrups are designated in the drawing and marked H, H.` The stirrups should be made of iron, or some other strong metal. These stirrups support two press rollers, marked in the drawing B, and C, (and made of wood). These rolls should be about ten `to twelve inches in diameter, and should be turned smooth and even on their surface, so as to come to a tight joint along `their line of contact when placed, and resting in their position in the stirrups as designated in the drawing. Iron or wooden boxes of sutlicient size tofit the gudgeons or bearings of the rolls, must be placed in the stirrups to keep the press rollers B, and C, in their pro-per places which is one directly above the other, so that roller C, will rest upon roller B, and lie pressed down on to it, by means of the screws passing through the tops of the stirrups marked S, S. Levers may be used for this purpose instead of screws, if thought preferable by the operator.

The shaft of roller B, is extended, and should be so far, as may be necessary to receive the pulley7 G, which is represented in the drawing, over which a belt is to pass to give the machine, motion. A small stationary wood roller, with smooth surface, is placed across the vat in front of press roller B, and, in a parallel line with it; and should be placed about four inches from the front side of the surface of said roller B. This small roll is indicated in the drawing, marked D. This distance, however, may be varied by `t-he operator, according to the strength of the paper heis making, or, according to his notions of the distance which it may he necessary for the paper to pass in the sizing in the vat, in order to become thoroughly saturated.

The design of the vat is to receive and contain the size after it is prepared (in the usual way for hand sizing) for use, into which, a suiiicient quantity is to be put, and may be introduced into the same, by use of buckets, or in such other manner, as the opera-tor may choose to adopt. The `press roller B, is so placed as to touch the size in the vat Vor descend a small distance into it when the Vat is lled to its proper height for sizing, and the stationary roll D, should be placed so low in the vat, as to loe one half of its diameter immersed in the size.

This sizing machine may be used in connection with the drying machines, now in use in t-he manufacture of paper, and should be so placed, as to receive the paper as it comes from the drying machine, or from intermediate reels, which may be used, or not, at `the option of the manufacturer; but should "the operator choose to dispense with the use of reels in the line of machinery, to which this sizing machine is attached., then the motion of press roll B, must correspond exactly with` the motion of the drying cylinders. If the pap-er be taken by the sizing machine from intermediate reels; a motion somewhat quicker is recommended for the press roller B.

The paper, whether taken from the drying machine, or from the intermediate reels by the sizer, should enter the size in the vat behind the press roller B, at a point from one to two inches back from the line of contact, formed by the backside surface of press roller B, and the surrounding size in the vat, and, proceeding in a continuous sheet, pass under the under surface of said dry, to be cut into sheets by the cutting f tion of the manufacturer.

machine. The course of the paper through the sizing machine, as taken from'the drier wit-hout reels is indicated by the red lines in the drawing. The press rollers B, and O, and the stationary roller D, may be made of wood, or metal, according to the disposi- The press rollers B, and O, should be about four inches shorter lthan the width of the vat, and the Y press roller B, may be raised above the surface o-f the size in the vat, if thought advisable by the operator; but I deem it best to have it immersed in the size as heretofore described.

This vat sizing machine diifers from others in the following points and particulars;l viz: in that it is much more simple in the nature of its construction, there being employed only three rollers; whereas other machines are complicated in their structure, generally embracing from 4L to 6 rollers and bars and less perfect in their operation and the manner of producing the results. It is also essentially different, by causing the paper to pass through a more extended body of size, it being from three to four feet,

thereby securing the obj ect of perfectly sizuse of which, in a stationary position, all

wrinkles, folds and other imperfections of this kind, made in the paper by drying, or in any stage before sizing, are eifectually and completely removed g-consequently a great saving is made, which otherwise would be lost and broken.

What I claim as my invention and desire to secure by Letters Patent is-V The additional roller D located as herein described in combination with t-he rollers B, O, by which arrangement the paper passes through the size, and the size has free access to both sides of the sheet between the rollers B and D, and by which also the wrinkles or folds formed by its expansion in passing through the size are removed before it reaches the press rollers, all as herein described.

LORENZO D. BROWN. lVitness-es OHAs. D. WV. V. ALLEN, H. M. BRADLEY. 

